If ever you wanted to re-enact your own version of Lost, Kimbe Bay in Papua New Guinea would be the place to do it. Heading out early with the dive boat, we found ourselves lumped on a small unnamed island laid thick with vines, caves and wooded trees, while those bearing shiny certificates went deep underwater. The lazy sun beat down on us, and once we realised those diving bastards had taken all the food and water, we quickly began spinning hypotheticals.